At the core of masculinity is how a man treats the women in his life. In particular, a masculine husband will understand the nature of his wife as his equal, cherishing his wife's unique personality and using his strength to care for her.
Jesus expects us--His disciples--to fast. It's not a matter of "if" but "when" we fast. He tells us that when our motives are right, there is something about the act of fasting that pleases the heart of God. It's something our Father in heaven takes note of and rewards.
There are no magical words to manipulate God into doing what we want. Instead, prayer builds our relationship with God as Father, asking that he advance his kingdom even as he forgives our sins and meets our everyday needs.